这是一个基于逻辑的问题，我需要一个小样本的代码或一个想法提供的答案。
我正在从JSON响应以编程方式创建一个ui。这个应用程序将加载未知数量的问题和答案。我使用循环和条件语句来为ui创建Views，并且我使用AsyncTask来完成大部分繁重的工作。
嗯，问题我似乎无法弄清楚的是:我将如何给一个未知的数量的视图唯一的 id，这样我就可以使用它们。
我提供了所有的fragment代码，所以你知道到底发生了什么:
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_assessment, container, false);
ab = getActivity().getActionBar();
infoList = new ArrayList<HashMap<String, String>>();
new Load().execute();
return view;
}
class Load extends AsyncTask<String, Void, String> {
private ProgressDialog pDialog;
JSONParser jParser = new JSONParser();
JSONArray questions = null;
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Loading questions. Please wait...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
protected String doInBackground(String... args) {
// getting JSON string from URL
String componentName = (String) ab.getSelectedTab().getText();
companyName = model.getcName();
projectName = model.getpName();
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(3);
nameValuePairs.add(new BasicNameValuePair("company", companyName));
nameValuePairs.add(new BasicNameValuePair("project", projectName));
nameValuePairs.add(new BasicNameValuePair("component",
componentName));
JSONObject json = jParser.makeHttpRequest(url, "POST",
nameValuePairs);
// Check your log cat for JSON response
Log.d("All Questions: ", json.toString());
try {
// Checking for SUCCESS TAG
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
Log.v("RESPONSE", "Success!");
// products found: getting Array of Questions
questions = json.getJSONArray(TAG_QUESTIONS);
// looping through All Questions
for (int i = 0; i < questions.length(); i++) {
JSONObject c = questions.getJSONObject(i);
// Storing each JSON item in variable
String name = c.getString(TAG_NAME);
String field = c.getString(TAG_FIELD);
String value = c.getString(TAG_VALUE);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_NAME, name);
map.put(TAG_FIELD, field);
map.put(TAG_VALUE, value);
infoList.add(map);
}
} else {
// no products found
Log.v("ERROR", "No JSON for you!");
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
protected void onPostExecute(String string) {
// dismiss the dialog
pDialog.dismiss();
for (int i = 0; i < infoList.size(); i++) {
// get HashMap
HashMap<String, String> map = infoList.get(i);
// if the answer should be a radio button, inflate it
if (map.get(TAG_FIELD).equals(r)) {
Log.v("RESPONSE", "About to create a radio button");
// find
LinearLayout content = (LinearLayout) view
.findViewById(R.id.add);
// create
ArrayList<String> value = new ArrayList<String>();
TextView tv = new TextView(getActivity());
RadioGroup rg = new RadioGroup(getActivity());
rg.setOrientation(RadioGroup.HORIZONTAL);
RadioButton rb = new RadioButton(getActivity());
RadioButton rb2 = new RadioButton(getActivity());
LinearLayout ll = new LinearLayout(getActivity());
// set
rb.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
rb2.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
ll.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
String s = map.get(TAG_VALUE);
for (String parts : s.split("rn")) {
value.add(parts);
}
rb.setText(value.get(0));
rb2.setText(value.get(1));
tv.setText(map.get(TAG_NAME));
ll.setOrientation(LinearLayout.HORIZONTAL);
// add
rg.addView(rb);
rg.addView(rb2);
ll.addView(tv);
ll.addView(rg);
content.addView(ll);
}
// create an EditText field
else if (map.get(TAG_FIELD).equals(et)) {
Log.v("RESPONSE", "About to create an EditText");
// find
LinearLayout content = (LinearLayout) getActivity()
.findViewById(R.id.add);
// create
TextView tv = new TextView(getActivity());
EditText et = new EditText(getActivity());
LinearLayout ll1 = new LinearLayout(getActivity());
// set
tv.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT));
et.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
ll1.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
tv.setText(map.get(TAG_NAME));
ll1.setOrientation(LinearLayout.HORIZONTAL);
// add
ll1.addView(tv);
ll1.addView(et);
content.addView(ll1);
}
// create CheckBox
else if (map.get(TAG_FIELD).equals(cb)) {
Log.v("RESPONSE", "About to create a CheckBox");
// find
LinearLayout content = (LinearLayout) getActivity()
.findViewById(R.id.add);
// create
TextView tv = new TextView(getActivity());
CheckBox cb = new CheckBox(getActivity());
LinearLayout ll2 = new LinearLayout(getActivity());
// set
tv.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT));
cb.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.MATCH_PARENT));
ll2.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
tv.setText(map.get(TAG_NAME));
ll2.setOrientation(LinearLayout.HORIZONTAL);
// add
ll2.addView(tv);
ll2.addView(cb);
content.addView(ll2);
}
// Create Spinner
else if (map.get(TAG_FIELD).equals(dm)) {
Log.v("RESPONSE", "About to create a Drop Down Menu");
// find
LinearLayout content = (LinearLayout) getActivity()
.findViewById(R.id.add);
// create
TextView tv = new TextView(getActivity());
LinearLayout ll3 = new LinearLayout(getActivity());
ArrayList<String> spinnerArray = new ArrayList<String>();
ArrayAdapter<String> aa = new ArrayAdapter<String>(
getActivity(),
android.R.layout.simple_spinner_dropdown_item,
spinnerArray);
Spinner spinner = new Spinner(getActivity());
// set
tv.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
spinner.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
ll3.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH_PARENT,
LinearLayout.LayoutParams.MATCH_PARENT));
tv.setText(map.get(TAG_NAME));
String s = map.get(TAG_VALUE);
for (String parts : s.split("rn")) {
spinnerArray.add(parts);
System.out.println(parts);
}
spinner.setAdapter(aa);
ll3.setOrientation(LinearLayout.HORIZONTAL);
// add
ll3.addView(tv);
ll3.addView(spinner);
content.addView(ll3);
} else if (map.get(TAG_FIELD).equals(fu)) {
Log.v("RESPONSE", "About to create an ImageView");
// find
LinearLayout content = (LinearLayout) getActivity()
.findViewById(R.id.add);
// create
TextView tv = new TextView(getActivity());
LinearLayout ll4 = new LinearLayout(getActivity());
ImageButton ib = new ImageButton(getActivity());
int ibd = 0;
ibd = R.drawable.ic_menu_camera;
// set
tv.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
ll4.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
ib.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT));
tv.setText(map.get(TAG_NAME));
ib.setImageResource(ibd);
ll4.setOrientation(LinearLayout.HORIZONTAL);
//add
ll4.addView(tv);
ll4.addView(ib);
content.addView(ll4);
}
}
}
};
我可能以错误的方式开始，但这就是我在哪里。我需要给EditText一个id来抓取用户输入，我需要给ImageButton和id，这样它就可以用onClick函数执行事件，等等。我相信你明白我的意思。那么你们会如何解决这个问题呢?
这个问题很难回答。这实际上取决于您想如何处理捕获的数据。在任何情况下，您都不必为元素生成id，您可以使用Anonymous类设置新的事件侦听器。然后，这些监听器中的每一个都可以根据键(name?)将数据保存到某处。